Can anyone tell why it crashed here:
From what I can tell it GPFed trying to access the thread data pointed to by td. But td is used at the start of that function. Unless something went wrong during cpu_switch(...).
Code:
Fatal trap 9: general protection fault while in kernel mode
cpuid = 2; apic id = 04
instruction pointer = 0x20:0xffffffff80b1a443
stack pointer = 0x28:0xfffffe03de99b7a0
frame pointer = 0x28:0xffffffffffffffff
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags = resume, IOPL = 0
current process = 11 (idle: cpu3)
trap number = 9
panic: general protection fault
cpuid = 2
KDB: stack backtrace:
#0 0xffffffff80b31f57 at kdb_backtrace+0x67
#1 0xffffffff80ae6e02 at vpanic+0x182
#2 0xffffffff80ae6c73 at panic+0x43
#3 0xffffffff80ff1d31 at trap_fatal+0x351
#4 0xffffffff80ff19c8 at trap+0x768
#5 0xffffffff80fd46d1 at calltrap+0x8
Uptime: 8d3h6m58s
Loaded symbols for /boot/kernel/autofs.ko
#0 doadump (textdump=<value optimized out>) at pcpu.h:221
221 __asm("movq %%gs:%1,%0" : "=r" (td)
(kgdb) list *0xffffffff80b1a443
0xffffffff80b1a443 is in sched_switch (/usr/src/sys/kern/sched_ule.c:1993).
1988 * Assert that all went well and return.
1989 */
1990 TDQ_LOCK_ASSERT(tdq, MA_OWNED|MA_NOTRECURSED);
1991 MPASS(td->td_lock == TDQ_LOCKPTR(tdq));
1992 td->td_oncpu = cpuid;
1993 }
1994
1995 /*
1996 * Adjust thread priorities as a result of a nice request.
1997 */
Current language: auto; currently minimalFrom what I can tell it GPFed trying to access the thread data pointed to by td. But td is used at the start of that function. Unless something went wrong during cpu_switch(...).